Feed regulating mechanism



Sept. 14, 1937. M. J. MILMOE 2,093,287

FEED REGULATING MECHANISM Fild 001;. 15, 1934 5 Sheets-Shee't 2 TOzLscTlzo- AGNET 5 IN VEN TOR. J flLchaeLJMLLmoe K ATTORNEYS.

Patented Sept. 14, 1937 UNITED STATES 2,093,287 7 FEED REGULATINGMECHANISM Michael J. Milmoe, Glen Ellyn. n1., assignor to F. B.Redington 60., Chicago, 111., a corporation of Illinois ApplicationOctober 13, 1934, Serial No. 748,203

18 Claims.

This invention relates to feed regulating mechanism for feeding properlya web which is to be wrapped about'an article.

An important object of the invention is to provide new and improved feedregulating means including a web adapted to be properly positioned inrespect to a cutting element so that the proper amount of web will becut to the proper size in relation to the article to be wrapped.

Another object of the invention is to provide photo-electric cellcontrolled feed mechanism for feeding a wrapping web to a cuttingelement, the web having marking or indicia thereon, the electric cellcausing the web to properly feed in respect to a cutting element inaccordance with the marking or indicia thereon, so that the web will ,1always be cut at the same precise position relative to the marking orindicia.

A further object of the invention is to provide new and novel means forfeeding a web to wrapping position and cutting the web at an exactposition in respect to marking or indicia thereon in proper timedrelationship to the article feeding mechanism.

A still further object of the invention is to provide a web adapted tobe moved to a predetermined cutting position, the cutting element beingoperated in proper timed relationship with res'pect to the feeding ofthe'web, the web beingfed a predetermined amount in accordance with thearticle to be wrapped, the web having means provided therein forcontrolling the operation of a photo-electric cell whereby the web willbe moved to a proper position relative to the cutting element, the webbeing cut a proper amount with respect to the article feeding mechanismso that the web will be consecutively cut at positions determined by theposition of the means on the web.

Numerous other objects and advantages will be apparent throughout theprogress of the following specification when taken in connection withthe accompanying drawings wherein Fig. 1 is a detail front elevation ofthe machine, certain parts being broken away for the sake of clearness;

Fig. 2 is a detail plan section on the line 2-2 of Fig. 1, showing someof the operating mechanism; Fig- 3 is a detail end elevation looking inthe direction of the arrows 3'3 of Fig. 2 and show- .ing the'parts inoperable correctin position;

Fig. 4 is a detail sectional view on the lines 44 of Figs. 2 and 6,showing the parts in non-correcting position; 7

Fig. 5 is a detail elevational view showing the parts Just prior to thecorrecting position;

Fig. 6 is a detail elevation, partly in section, on the line 6li of Fig.1;

Fig.- 6a is a fragmentary view showing the mag net energized and itseffect on a co-operating element; I

Fig. '7 is a detail sectional view on line l-'I of Fig. 3;

Fig. 8 is a detail plan section on the line'B-B of V Fig. 3;

Fig. 9 is a detail sectional view on the line 9-9 of Fig. 3;

Fig. 10 is a detail vertical sectional view on the line ill-l0 of Fig.1, showing the proper position of the web in respect to certain otherparts, no correction being necessary in this view;

Fig. 11 is a view of the web showing the web in its retarded position atwhich point correction is required and will be made;

Fig. 12 is a view similar to Fig. 11, but shows the web immediatelyafter the corrected position and again in normal feeding position;

Fig. 13 is a diagrammatic or schematic view of the electric circuitemployed in connection with the photo-electric cell;

- Fig. 14 is a detail enlarged plan view of the timer element shown inFig. 2;

Fig. 15 is a detail sectional vertical view showing a modified form oflight and photo-cell mounting; v

Fig. 16 is another modified form of light and photo-cell mounting, and

Fig. 17 is a detail elevational view similar to Fig.3 but showing amodified form of correcting mechanism in non-correcting position.

Figs. 1 to 16 inclusive disclose mechanism used in connection with thepresent apparatus and includes feed regulating mechanism for feeding,

8. web which normally lags, the web being normally fed slightly slowerthan required. Means cooperating with and controlled by the movement ofthe'web are employed for periodically advancingthe normally lagging webpredetermined amounts to properl osition the web in respect to a cuttingelement, whereby the web will be moved to proper .position relative tothe cutting mechanism for a period of time until the lagging web againrequires advancement. The web is cut at the desired plane and the cutpiece of web is fed to position'in respect to the article to be wrapped,'when other mechanism (not shown) is employed to wrap the article in thecut piece of web.

The present mechanism or apparatus embodyatively fixed to and drives atransverse shaft 6 upon which there is mounted cutter roller 1.

A gear6 is fixed to the shaft 6' and drives a gear 4 9 which rotates acompanion cutter roller l6 (Fig. 1).

The main shaft 2 also has a sprocket ll fixed thereto which drives thechain l2 which cooperates with a sprocket ii! on the shaft I4 .(Figs. 1and 2). The shaft l4 has a bevel gear l5 fixed thereto (Fig. 2), andthis bevel gear drives a bevel gear I6 to rotate theshaft l1. A gear l6,is fixed to the shaft l1 and drives a gear l9 which is fixed to a shaft26, the shaft 26 being parallel to the shaft i1. tatably mounted inleyersor arms 2| and,22 (Fig. 4), which are pivotally connected to abracket 23 fastened to the frame. Springs 24 and 25 are provided forurging the shaft. 26 toward the shaft I1 and maintaining thegears l6 andI9 in mesh (Figs. 4 and 9). Driving rollers 26 and 21 are slidablymounted on and driven .by shafts l1 and 26 respectively. A driving disk26 is arranged between the rollers 26 and 21 (Fig. 8) and is alwaysmaintained in contact with the rollers 26 and 21 due to the urgingaction of the springs 24 and 25, thus during rotative movement of theshafts" and 26, the disk 26 is caused to rotate. The rollers 26 and 21are of the same size and rotate at the same speed. The disk 26 isslidably mounted on a stub shaft 29' (Fig. 8).

A sprocket 36 on shaft 29 drives a sprocket 3| (Fig. 2) on a' feedroller shaft 32 through the intermediary of a sprocket chain 33. A feedroll34 is fixed to thefshaft' 32 and a gear 35 also fixed to the shaft32 meshes with and drives a companion gear 36. The gear 36 drives ashaft 31 upon'which a companion feed roller 36 is fixedly mounted torotate with the shaft.

A rolled web 36 is carried by a shaft 46 mounted'in'a bracket 4|. Theweb 39, whichmay be-of any suitable or desirable wrapping material suchas cellulose acetate passes over a guide roller 42 throughsuitableguidlng elements 43 and 44 and through the feed rollers-34 and36 whereby the web is fed through the cutting rollers 1 and |6.-

In P a tice the rollers 26 and 21 are located in respect to the disk 26so that normally the disk will rotateat a speed slightly less than isrequired to 'feed the web a distance equal to the length or the wrapper.-Means intermittently operated are therefore provided for speeding 'upthe rotatio'n of the disk and consequently the feeding of the web tocompensate for the lagging of the web o and to move the web in propertimed relationship with the cutter and 'to feed the web a distancesubstantially equal to the length of the cut wrapper. The means'forspeeding up the rotation of the disk and then returning the disk to itsnor mal operating speed comprises shiftable means for changing thelocation'of' the rollers 26 and 21 radially or inwardly and outwardly ofthe disk. This shifta'ble means comprises rigid 'collars 45 and 46rigidly andintegrally formed .with

the rollers 26 and 21 respectively. The collars 45 and 46 each comprisean annular flange 41 and an end-flange 46 spaced apart to provide an'annularspace or groo"e 49. A lever 56 pivoted at 5| to a part of thebracket 23 has-its lower end 52 arranged in the space 49 between .theflanges The shaft 26 is ro- -web to feed faster.

' or pawl 16 (Figs. 3, 4 and 6a).

' lever v56 toward the end of the setscrew 6L .mm as and is adapted'toshift the rollers 26 at 62 on a stub shaft 63 and has its arm 64 pro- Ivided with a cam follower. which rides on a cam 65. rotates therewith.Rotation of the cam 65 causes back and forth movement of the bar 51 ofthe link 55. A spring 66 is provided for urging. the cam followerconstantly in engagement with the cam 65. v

The bars 56 and 51 are slidable in respect to each other, therebeingslotand pin connections 61 and 66operatively connecting the two bars, as

clearly shown in Fig. 4. A member 66 is adjustably connected. to the bar51 and carries a pawl 16 at its upper end,

which is pivoted thereto at 1|. The pawl.16 is adapted toengage thenotch 12 formed in the The cam 65 is mounted on the shaft" and bar 56 tomove the bar intermittently and co-extensively with the bar 51.

During normal operation of the machine during feeding of the web, whenno correction is required,

the. parts will assume the position shown in Fig.-

4, with the pawl or detent 16 being out of the notch 12. If, however, acorrection is necessary,

the pawl 16 will be caused to engage the slot or notch 12 to cause therods 66 to move with the rod 51. Movement of the rod 56 will swing the.

lever 56 on its pivot 5| and shift the rollers 26 and 21 to the right(Fig. 3) to cause the disk to rotate more rapidly and consequently causethe' The pawl or detent 16 is adapted to be moved into and out ofengagement with the slot or notch 12 by an arm 13 which cooperates withthe tail piece 14 on the detent The arm 13 is movably connected to abracket 15 as clearly shown in Fig. 6a. The arm 13 is adapted to beraised by the energization of an electro-magnet 16 (Fig. 6a).,permitting the forward end of the detent or pawl 16 to drop into'itsnotch 12. When the magnet 16 is de-energized, springs 11 will return thearm 13 to the position shown in Fig. 6, causing the pawl 16 to be raisedfrom .its notch 12. 4

The member 69 to which the pawl or detent 16 is pivoted, is adaptablefor adjustable movement along the bar 51 by means of a pin 16 and screw19 co operating with a slot formed in the. member 69. The movement oradjustment of the member '69-causes the detent or pawl 16 to be therelative movement of the rod 66. This ad'- ju'stable connection permitsthe movement of the pawl to be varied in respect to the slot 12.

. An adjustable setscrew 6| (Figs. 3, 4and 'I) is adapted to limit themovement of the upper portion of the lever 56 tothe right (Figs. 3 and4), a

spring 62 being provided to 'normallyurge the' I practice, this screw isso set to permit an overfeed of the material. the amount of the'overfeedbeing regulated or adjusted as practicable. Therefore,

overfeed and the proper amount of correction respectively. V

The means for controlling the operation of the electro-magnet 18comprises an electrical circuit Y including a photo-electric relaymechanism and a timer mechanism, (see Fig. 13). A photo-electric cell 83is arranged within a casing 88 having an opening 85 provided therein topermit a source of light 88 arranged within a shield-l1 to focus a beamof light through the opening 85 and effect operation of thephoto-electric cell 83. The web 39 as herein illustrated, is of clearmaterial such as cellulose acetate and is provided with a plurality ofevenly spaced, darkened or opaque, lightresisting portions, or othercontrasting indicia, provided along the margin thereof. The spacing ofthe portions or indicia 88 is equal to the length of a wrapper which isto be cut from the web.

' ing leads 89 (Fig. 13) is transmitted to the source of light 88 by theconductors 98. The leads 89 are also operatively and electricallyconnected to a standard relay 9|, which relay is operatively andelectrically connected to the photo-electric cell 83.

The aforesaid electrical circuit also includes a timer circuit which isoperatively and electrically connected with the relay 9| and theeleotrow magnet 18.

A timer mechanism 92 (Figs. 1, 2, and 14), comprises a rotary member orshaft 93 which extends through a part of the frame and is driven by abevel gear 98 meshing with a bevel gear 95 fixed to the shaft 14 (Fig.1). A contact 88, electrically connected to the relay, is adapted to beintermittently engaged by a pivotally mounted contact arm 91 which isoperatively connected tothe electro-magnet 18 and the relay 91. Thecontact between the arm 91 and the contact 98 is intermittently made byrotation of the shaft 93, which is formed with a cammed surface 98 (Fig.14), spring means 99 being provided to maintain the contact arm 91 inconstant engagement with the shaft 98.

The web is arranged between the source of light 88 and thephoto-electric cell 83 in such a manner that the ray of light will bealong the edge carrying the marks or indicia 88, themarks or indiciabeing adapted to interrupt the source of light, the web being constantlyfed to the cutters 1 and ID by the feed rolls 98 and 88. Asaforementioned, the webis fed slightly slower than the amount required,and inasmuch as it is necessary that the proper length of web be cut,

the web must be fed a distance approximately equal to the spaces betweenthe markings or indicia 88; however, due to the variation of friction onthe feed rollers and also the elongation ly and exactly, the particularfeeding mechanism herein described is employed. It is further necessarythat the web be cut at spaced intervals due to the fact that advertisingmatter; trade name, et cetera, appears on the web and it is de- A sourceof electric power comprising conductsirable-that such name oradvertising be positioned relatively the same on'all packages,therefore, the present means are devised to cause the web to be cutsubstantially at the precise, same point, relative to the markings orindicia 88.

During normal operation, the source of light 88 forth by the speed ofthe feeding mechanism will be unaffected because the pawl 18 will not beengaged with the notch 12. When a portion 88 of the web interrupts thebeam of light between the source 88 and the photo-electric cell 83, noimpulse will'be set up in the photo-electric cell 83 to keep theelectro-magnet de-energized, and therefore the electro-magnet will tendto become energized.

To cause the magnet 98 to be energized, it is necessary that the portion88 of the web be directly between the source of light 88 and thephoto-electric cell 83, and that contacts 98 and 91 be closed. Contactof the contact members- 98 and 91 is continuous and intermittent and thecontacts are closed during each revolution of the machine in timedrelationship with the cutters, therefore, if the portion 88 on the webtends to cause energization of the magnet, such energization will nottake effect unless the contacts 98, and 91 are closed. Furthermore, thecontacts 98 and 91 will have no effect on the mechanism unless theportion 88 of the web intercepts the ray between the source of light andthe photo electric cell. When, during the operation of the machine, thecontacts are closed simultaneously with the interception of the beam oflight by the portion 88, the magnet 18 will become energized causing thearm 13 to be raised. When the arm 13 is raised, the engaging end of thepawl 18 will drop downwardly into engagement with the slot 12 wherebythe reciprocal motion of the bar 51 will be transmitted to the bar 88.This trans faster feeding movement of the web. The mag-,

net will stay energized only so long as the contacts 91 and 98 are inengagement, therefore, as soon as the shaft 93 rotates a sufficientdistance to break the contact between the members 91 and 98, theelectro-magnet will again be de-energized and the parts will return totheir normal original operable position with the detent again out ofengagement with the'slot 12, the shifting of the rollers 28 and 21 totheir normal positions being accomplished by the spring 82 pulling thelever 88 toward the right (Fig. 4) but against the stop screw 81. Thiscycle of operation of energize.- tion and de-energization of the magnetto cause proper feeding of the web relative to the'cutter is continuedthroughout the operation of the machine. In Fig. 10, the normaloperation of the machine is continuedv because the portion 88 is shownas not intercepting the light ray when the contacts 98- and 91 are inengagement. In Fig. 11 the web is shown in positionso that the portions88 will interrupt the light ray when the contacts-98 and 91 are closedand adjustment is revquired, thisbeingdue to the lag ng of the web.

'this reciprocal movement of the shutter being In Fig. 12 the web isshown advanced after the correction has been made and the feeding of theweb has been advanced immediately after the interception of the lightray by the portion 88 and the closing of the contacts 96 and 81.

The above-described"mechanism will operate with both alternating anddirect current. Sometimes, however, where alternating current isemployed, and due to the fast operation of the machine, it may bepossible that the portion 88 'on' the web will pass the opening in thephoto-electric cell casing 84 so quickly that it will have no effect onthe photo-electric cell and consequently the electro-magnet' will not.become energized, therefore, to overcome such a possibility, it has beenfound preferable to incorporate a shutter I in' cooperation with thephoto-electric cell housing 84. This shutter has a relatively fine orsmall opening I00 provided therein, (Fig. 1) which opening I00communicates with the larger opening 85 in the photo-electric cellhousing 84,

and moves with the webbing a predetermined distance, and is thencausedtoreturn upwardly,

continuous. The downward movement of the shutteroccurs whenv thecontacts 98 and 8] are first brought into engagement, the shutter beingin timed relationship with the closing of said contacts. This movement.of the shutter is caused by an arm IOI fixed to the shutter I00 (Fig.1),

the movement of the arm I 01 being effected by a cam I02 engaging ,a camroller I03 on the arm IN. The arm IOI is pivoted to the bracket M asindicated at I04 (Fig. 1), a spring l05 being pro-- vided to hold thecam roller I03 against the cam.

I02. The cam I02 is fixed to a shaft I00 (Figs. 1, 2 and 6) which ismounted in suitable bearings carried by the'bracket 4|. The shaft I06has a sprocket I01 fixed thereon which is driven by a sprocket I08 onthe cutter shaft 6 through the'intermediary of a connecting sprocketchain 'I09,-therefore, the shutter I00 is caused tooperate in timedrelationship with the cutter which is also operated in timedrelationship'with thetimer mechanism 92. The effect of the shutterarrangement is to theoretically lengthen the porvent any stray source oflight from entering the opening in the housing. This shield H0 ispivoted at III (Fig. 1) and assists in maintaining the running web inrelative contact to the opening 85 in the photo-electric cell housing84.

In'Fig. is shownanother modified form of shutter arrangement whereby thephoto-electric cell itself is movable, thus eliminating use ofseparate-mechanism for operating the shutter.

This arrangement comprises the photo-electric cell 83 being mounted inthe housing 84 which is fixed to a pivoted lever 'I I2, the pivotalmovement of the lever II2 being caused by the cam I02 and the cam rollerI03 as described above.

In Fig. 16, the source of light 8 8.and'the housing 81 therefor aremounted on the lever I I2'and moves therewith along with thephoto-electric cell 83 and its housing 84. The reciprocal move-- ment ofthe photo-electric cell and the source of light is'a'ccomplished by thecam I02 and the cam roller I03, causing reciprocation of the entirebracket I I2 upon which both of the light elements are mounted.

In instances where it is desired to over-feed web instead of causing theweb to lag, as described above, "some of the mechanism may be slightlychanged in conformance with thecon struction shown in Fig. 17, whereinthe lever is normally urged against the stop to such a, position whereit is over-feeding. When a correction is necessary, the action of thelever will operate inthe opposite direction.

When the mechanism shown in Fig.1! is em-' ployed for over-feeding, andwhen a correction is desired and the electro-magnet I8 is energized,

cause operation of .the lever 50 moving the end 52 to the left (Fig.17). This movement will cause the rollers 28 and 2l to likewise move tothe left, and therefore retard the rotation ofthe.

disk 28 and consequently retard the feeding. This retardation of thedisk causesthe web to 15 the pawl 10 will engage the slot or notch 12120be fed more slowly, and until the contacts ST and 96 are broken, atwhich time the parts will again return to their normal operatingposition as shown in Fig. 17.

Changes may be made in tion, and arrangement of the parts withoutdeparting from the spirit of the invention or sacrificing any of itsadvantages. and the right is herebyreserved to make all such changes asfairly fall within the scope of the following claims.

' The invention is hereby claimed as follows:

1 In a wrapping machine forwrapping a piece of webhaving indicia thereonabout an article,

a photo-electric cell, means controlled by the the form, 'constl'uc--photo-electric cell and cooperating with indicia on the web for movingthe web, a rotatable disk for controlling the speed of feed of the web,rollers engaging the disk and driving thesame, and means controlled bythe photo-electric cell and causing movement of said rollers inwardlyand outwardly of saiddisk to vary the speed of the disk and consequentlythe feeding speed of the :web.

2. ma wrapping machine for wrapping a piece of web havingindicla thereonabout an article, a photo-electric cell, means controlled by thephoto-electric cell and-cooperating with indicia on the web for movingthe web, a rotatable-disk for controlling the speed of feed of the web,rollers engagingthe disk and driving the same, andel'ectro-magneticmeans controlling the position of said rollers relative to the diskwhereby the.

speed of movement of the disk and consequently the feeding speed of theweb may be varied upon movement of the rollers in a predeterminedposition relative to the disk.

3. In a wrapping machine for wrapping a piece of web having indiciathereon about an article, a

means controlled .by the photo-electric cell, photo-electric, cell andcooperating with indicia on the web. for movingthe web, a rotatable diskfor controllingthe speed of feed of the web, rollers engaging the diskand driving the same, electro-magnetic means for moving said rollersrelative to the disk whereby the speed of movement of the disk andconsequently the feeding speed.

of theweb may be varied upon movement of the rollers in a-predeterminedposition relative to the disk, means controlling the operation of 'saidelectro-magnetic means, and means for adjusting the amount of movementimparted to'said rollersby said electro-magnetic me'ans.', U

4. In a wrappingmachine forwrapping a piec tion relative to the disk,means controlling the operation of said electro-magnetic means, andmeans for limiting the movement of the rollers in one direction wherebya relatively fine adjustment may be had.

5. In a wrapping machine for wrapping a piece of web having indiciathereon about an article, photo-electric means, means controlled by thephoto-electric means and cooperating with indicia on the web for movingthe web, a disk for causing the web to feed at a speed different fromthat normally required, and means in adjustable driving engagement withthe disk for varying its speed of rotation at periodic intervals.

6. In a wrapping machine for wrapping a piece of web having indiciathereon about an article, photo-electric means, meansv controlled by thephoto-electric means andcooperating with indicia on the web for movingthe web, a disk for causing the web to feed at a speed less thannormally required, and means controlled by the web when indicia thereonis at a predetermined position relative to the photo-electric means forincreasing the speed .of the disk, saidlast named means including amember in adjustable driving engagement with the-disk.

7. In a wrapping machine, a disk, rollers engaging opposite sides of thedisk, means for rotating said rollers, and means for automaticallymoving the rollers inwardly and outwardly relative to the center of thedisk to vary the speed of rotation of said disk.

8. In a wrapping machine, a 'disk, rollers en- 45 gaging opposite sidesof the disk, means for rotating said rollers, means for automaticallymoving the rollers inwardly and outwardly relative to the center of thedisk to vary the speed of rotation of said disk, said-means comprising apair of disconnected links, and means for connecting said a linkstogether at certain intervals.

9. In a wrapping machine, a disk, rollers engaging opposite sides of thedisk, means for'rotating said rollers, means for automatically movingthe 'rollers inwardly and outwardly relative to the center of the diskto vary the speed of rotation of said disk, said means comprising aconstantly moving arm and a normally stationary arm, and means forlooking said two arms together. I

. 10. In a wrapping machine, a disk, rollers engaging opposite sides ofthe disk, means for rotating said rollers, means for automaticallymoving tion of said disk, said means comprising a con- 11. A wrappingmachine having wrapper feed-.

connected to said bar, a constantly movable link, and means forperiodically locking said two links together. I

12. A wrapping machine having wrapper teeding mechanism comprising arotatably'mounted 5 disk, a driving roller engaging said disk to drivethe same, a bar for shifting the roller relative to the disk to vary thespeed of the disk, a link connected to said bar, a constantly movablelink,

means for periodically locking said two links together, electro-magneticmeans controlling the operation of last named means, and means includinga photo-electric cell controlling the operation of the electro-magnetlomeans.

13. In a'wrapping machine comprising a web having indicia thereon, webfeeding means to feed the web, a photo-electric cell controlling theoperation of the feeding means and controlled by indicia on the web, ahousing for said photoelectric cell, -a shutter for said housing, andmeans for causing said shutter to move a predetermined distance with theweb at predetermined intervals.

14. In a wrapping machine, means for feeding a web of wrapping material,said web having indicia thereon, a photo-electric cell arranged on oneside of the web and controlling the web feed ing means, a-source oflight arranged-on the other side of the web whereby the operation of thephoto-electric cell is controlled by, the source of light and theindicia on the web, said photo-' electric cell and source of lightmoving with the web at the same speed thereof at predetermined certainintervals.

adjustable driving engagement therewith.

16. In a wrapping machine, a station having operating means foroperating upon a web,'means comprising a cooperatingdisk and roller inadjustable driving engagement for feeding a web having indicia thereonpast the station at a predetermined speed, electro-sensitive meanscontrolled by the indicia on said web, and means controlled by saidelectro-sensitive means for varying the relative positions of said diskand roller whereby web. I

- 17. In a wrapping machine having means for feeding an indicia markedweb and means for performing an operation on the web in predeto changethe rate of feed of the termined relation to said indicia, thecombination of means for controlling the relative speed of said feedingmeans and said operation performing means comprising a rotatable disk; atotatable roller engageable with the face of said disk whereby theroller and disk are constrained for simultaneous rotation, sensing meanscon.-

trolled by the movements of the web, and means controlled by the sensingmeans for moving the roller toward or away from the axis of the diskwhereby to vary the relative driving speed of rotation between theroller and the disk.

18. In a wrapping machine, means for feeding an indicia marked web,said. feeding means beingcontinuously operable during the operationspeed of said feeding means and said operation 5 performing meanscomprising change speed mechanism, sensing means for controlling thechange speed mechanism controlled by the moirements of the web, andmeans for reciprocating said sensing means whereby it moves with the webat substantially web speed during the sensing operation.

mcmm. J. MIIMOE.

